Multiple motor



Dec. 14 1926.

W. FARRELL MULTI PLE MOTOR Filed J y 27. 1923 2 SheetS-Shet l Dec. 141926.

W. FARRELL MULTIPLE MOTOR Filed. July 27. 1923 2 Sheets-Sheet 2 PatentedDec. 14, 1926.

UNITED STATES PATENT OFFICE WILLIAM FARRELL. OF PHILADELPHIA,PENNSYLVANIA.

MULTIPLE MOTOR.

Application filed .Tuly 27. 1923. Serial No. 654,080.

My invention relates to improvementsin multiple motors' and its objectis to provide a multiple motor of an improved construction which willhave maximum power capacvio ` vention,

Figure 2 a section on line 2-2 of Figure 1,

Fi re 3 a section on line 3 3 of Figure 2 an Figure 4 a section on line4 4 ot Figure 2.

Referring to the drawings, 1 indicates a support in which is mounted ashaft 2 having fixed thereto a revolving frame 3. The frame providedwith chambers 4 which are covered by plates 5 secured to the frame. Amotor 6 is mounted in each chamber and has its armature shaft 7 bearingin the'wa-ll 8 of chamber 4 and in plate 5. `The end of the shaft 7projects out ofthe frame and has a pinion 9 fixed thereto.- The supportl comprises sectional uprights 10 and 11 disposed at opposite sides ofthe revolving frame.- The upright 10 is composed of. an upper section 12bolted to a lower section 13. The lower section 13 has a powertransmitting shaft 14 bearing therein, the end of which carries a pinion15 which meshes with an internal gear 16 fixed to the revolving frame.'Ihe upright 11 is composed of anv upper section 17 bolted to a lowersection 18. A disk 19 is bolted to upright 11 and has an internalcircular rack 20 secured I thereto by bolts 21.- The circular rack isdisposedv concentric with the revolving frame and parallel thereto sothat pinions `9 will mesh therewith while' the revolving frame rotates.The revolving frame is provided with 'an extension 22 on which aremounted electric conducting rings 23 and insulated therefrom byinsulation 24. An electrical connection between the motors and rings 23is made through wires 24a. Brushes 25 are secured to disk19-in anysuitable manner and Contact with the rings. A feed vline 26 isconnectedto the brushes through any suitable switch 27.

In the normal operation of my improved multiple motor, the idle mass ofan ordinary motor 1s utilized to serve in a similar manner as the rim ofa fly wheel. The internal circular gear rack 2O in conjunction with thedisk 19 serve as a guard or cover for the pinions to protectthe operatorfrom injury and` at the same time a maximum purchase in their'drivingmovement, thereby requiring comparatively small motors of high speed totransmit their power to the revolving body which rotates at a low speed,thus doing away with reduction gears, belts, pulleys and other reducingmechanism. If desired, instead of the power transmitting shaft beinggeared to the revolving frame, a belt may be directly connected to theperiphery of the frame as shown in dot-and-dash lines, or a pulley maylie-connected to the end of shaft 2.

A multiple motor constructed in the manner above described requiresmotors of low horse power; will maintain a practically constant speed ofrotation under all loads for which it is rated, and combines maximumpower capacity with minimum size.

While I have described my invention as taking particular form, it willbe understood that'the various4 parts may be changed without departingfrom the spirit thereof, and hence I do not limit myself to the preciseconstruction set forth, but consider that I am at liberty to make suchchanges and alterations as fairly come within the scope of the appendedclaims.

Having thus described my invention, what I claim as new and desire tosecure by- Let# ters Patent is '1. In a multiple motor, a revolvingframe provided with a plurality of chambers and an extension; a shaftkeyed to the frame; upright bearing supports for the shaft; a pluralityof plates secured to the frame for closing the chambers; an 4electricmotor mounted in each chamber and havingits armature shaft bearing inthe wall .of the chamber and in the plate; a disk secured toY givethepinions one of the supports; an internal circular.

gear rack secured to the disk; a pinion on each armature shaft'meshingwith/ the rack; electric conducting rings mounted on the extension andinsulated. therefrom; brushes fixed to one of the supports andcontacting with the rings, and electrical connections between the ringsand the motors.

2. In a multiple motor, a revolving frame provided witha plurality ofchambers each fear rack ixec'to the support, and a pinion on eacharmature shaft meshing with the rack, I A

-In testimony whereof I have signed my name.

` WILLIAM FARRELL.

